SIR,

With many thanks I return that noble Catalogue of Books, Rarities and Singularities of Art and Nature, which you were pleased to communicate unto me. There are many Collections of this kind in Europe. And, besides the printed accounts of the Musæum Aldrovandi, OCalceo- 194Musæum Clausum, or, Tract XIII. Calceolarianum, Moscardi, Wormianum; the Casa Abbellita at Loretto, and Threasor of S. Dennis, the Repository of the Duke of Tuscany, that of the Duke of Saxony, and that noble one of the Emperour at Vienna, and many more are of singular note. Of what in this kind I have by me I shall make no repetition, and you having already had a view thereof, I am bold to present you with the List of a Collection, which I may justly say you have not seen before.

The Title is, as above,

Musæum Clausum, or Bibliotheca Abscondita: containing some remarkable Books, Antiquities, Pictures and Rarities of several kinds, scarce or never seen by any man now living.